diff --git a/_define.php b/_define.php
index cebd4d3..a9f69d2 100644
--- a/_define.php
+++ b/_define.php
@@ -1,32 +1,31 @@
 <?php
 /**
  * @brief dcFilterDuplicate, a plugin for Dotclear 2
- * 
+ *
  * @package Dotclear
  * @subpackage Plugin
- * 
+ *
  * @author Jean-Christian Denis, Pierre Van Glabeke
- * 
+ *
  * @copyright Jean-Christian Denis
  * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
  */
-
 if (!defined('DC_RC_PATH')) {
     return null;
 }
 
 $this->registerModule(
-    "Duplicate filter",
-    "Antispam for duplicate comments on multiblog",
-    "Jean-Christian Denis, Pierre Van Glabeke",
-    '0.8',
+    'Duplicate filter',
+    'Antispam for duplicate comments on multiblog',
+    'Jean-Christian Denis, Pierre Van Glabeke',
+    '0.9',
     [
-        'requires' => [['core', '2.19']],
-        'permissions' => 'admin',
-        'priority' => 200,
-        'type' => 'plugin',
-        'support' => 'http://forum.dotclear.org/viewtopic.php?pid=332947#p332947',
-        'details' => 'http://plugins.dotaddict.org/dc2/details/dcFilterDuplicate',
-        'repository' => 'https://raw.githubusercontent.com/JcDenis/dcFilterDuplicate/master/dcstore.xml'
+        'requires'    => [['core', '2.24']],
+        'permissions' => dcAuth::PERMISSION_ADMIN,
+        'priority'    => 200,
+        'type'        => 'plugin',
+        'support'     => 'http://forum.dotclear.org/viewtopic.php?pid=332947#p332947',
+        'details'     => 'http://plugins.dotaddict.org/dc2/details/dcFilterDuplicate',
+        'repository'  => 'https://raw.githubusercontent.com/JcDenis/dcFilterDuplicate/master/dcstore.xml',
     ]
-);
\ No newline at end of file
+);
diff --git a/_install.php b/_install.php
index 009caf2..4dbdba2 100644
--- a/_install.php
+++ b/_install.php
@@ -1,63 +1,70 @@
 <?php
 /**
  * @brief dcFilterDuplicate, a plugin for Dotclear 2
- * 
+ *
  * @package Dotclear
  * @subpackage Plugin
- * 
+ *
  * @author Jean-Christian Denis, Pierre Van Glabeke
- * 
+ *
  * @copyright Jean-Christian Denis
  * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
  */
-
 if (!defined('DC_CONTEXT_ADMIN')) {
     return null;
 }
 
 # -- Module specs --
-$mod_id = 'dcFilterDuplicate';
+$mod_id   = 'dcFilterDuplicate';
 $mod_conf = [[
-        'dcfilterduplicate_minlen',
-        'Minimum lenght of comment to filter',
-        30,
-        'integer'
+    'dcfilterduplicate_minlen',
+    'Minimum lenght of comment to filter',
+    30,
+    'integer',
 ]];
 
 # -- Nothing to change below --
 try {
     # Check module version
     if (version_compare(
-        $core->getVersion($mod_id),
-        $core->plugins->moduleInfo($mod_id, 'version'),
+        dcCore::app()->getVersion($mod_id),
+        dcCore::app()->plugins->moduleInfo($mod_id, 'version'),
         '>='
     )) {
         return null;
     }
     # Check Dotclear version
     $dc_min = $this->modules[$mod_id]['requires'][0][1];
-    if (!method_exists('dcUtils', 'versionsCompare') 
+    if (!method_exists('dcUtils', 'versionsCompare')
         || dcUtils::versionsCompare(DC_VERSION, $dc_min, '<', false)
     ) {
         throw new Exception(sprintf(
-            '%s requires Dotclear %s', $mod_id, $dc_min
+            '%s requires Dotclear %s',
+            $mod_id,
+            $dc_min
         ));
     }
     # Set module settings
-    $core->blog->settings->addNamespace($mod_id);
-    foreach($mod_conf as $v) {
-        $core->blog->settings->{$mod_id}->put(
-            $v[0], $v[2], $v[3], $v[1], false, true
+    dcCore::app()->blog->settings->addNamespace($mod_id);
+    foreach ($mod_conf as $v) {
+        dcCore::app()->blog->settings->{$mod_id}->put(
+            $v[0],
+            $v[2],
+            $v[3],
+            $v[1],
+            false,
+            true
         );
     }
     # Set module version
-    $core->setVersion(
+    dcCore::app()->setVersion(
         $mod_id,
-        $core->plugins->moduleInfo($mod_id, 'version')
+        dcCore::app()->plugins->moduleInfo($mod_id, 'version')
     );
+
     return true;
-}
-catch (Exception $e) {
-    $core->error->add($e->getMessage());
+} catch (Exception $e) {
+    dcCore::app()->error->add($e->getMessage());
+
     return false;
-}
\ No newline at end of file
+}
diff --git a/_prepend.php b/_prepend.php
index ad820d7..2917fc2 100644
--- a/_prepend.php
+++ b/_prepend.php
@@ -1,21 +1,19 @@
 <?php
 /**
  * @brief dcFilterDuplicate, a plugin for Dotclear 2
- * 
+ *
  * @package Dotclear
  * @subpackage Plugin
- * 
+ *
  * @author Jean-Christian Denis, Pierre Van Glabeke
- * 
+ *
  * @copyright Jean-Christian Denis
  * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
  */
-
 if (!defined('DC_RC_PATH')) {
     return null;
 }
 
-$__autoload['dcFilterDuplicate'] = 
-    dirname(__FILE__) . '/inc/class.filter.duplicate.php';
+Clearbricks::lib()->autoload(['dcFilterDuplicate' => __DIR__ . '/inc/class.filter.duplicate.php']);
 
-$core->spamfilters[] = 'dcFilterDuplicate';
\ No newline at end of file
+dcCore::app()->spamfilters[] = 'dcFilterDuplicate';
diff --git a/_uninstall.php b/_uninstall.php
index 6ae07a4..4f12315 100644
--- a/_uninstall.php
+++ b/_uninstall.php
@@ -1,16 +1,15 @@
 <?php
 /**
  * @brief dcFilterDuplicate, a plugin for Dotclear 2
- * 
+ *
  * @package Dotclear
  * @subpackage Plugin
- * 
+ *
  * @author Jean-Christian Denis, Pierre Van Glabeke
- * 
+ *
  * @copyright Jean-Christian Denis
  * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
  */
-
 if (!defined('DC_CONTEXT_ADMIN')) {
     return null;
 }
@@ -18,43 +17,67 @@ if (!defined('DC_CONTEXT_ADMIN')) {
 $mod_id = 'dcFilterDuplicate';
 
 $this->addUserAction(
-    /* type */ 'settings',
-    /* action */ 'delete_all',
-    /* ns */ $mod_id,
-    /* desc */ __('delete all settings')
+    /* type */ 
+    'settings',
+    /* action */ 
+    'delete_all',
+    /* ns */ 
+    $mod_id,
+    /* desc */ 
+    __('delete all settings')
 );
 
 $this->addUserAction(
-    /* type */ 'plugins',
-    /* action */ 'delete',
-    /* ns */ $mod_id,
-    /* desc */ __('delete plugin files')
+    /* type */ 
+    'plugins',
+    /* action */ 
+    'delete',
+    /* ns */ 
+    $mod_id,
+    /* desc */ 
+    __('delete plugin files')
 );
 
 $this->addUserAction(
-    /* type */ 'versions',
-    /* action */ 'delete',
-    /* ns */ $mod_id,
-    /* desc */ __('delete the version number')
+    /* type */ 
+    'versions',
+    /* action */ 
+    'delete',
+    /* ns */ 
+    $mod_id,
+    /* desc */ 
+    __('delete the version number')
 );
 
 $this->addDirectAction(
-    /* type */ 'settings',
-    /* action */ 'delete_all',
-    /* ns */ $mod_id,
-    /* desc */ sprintf(__('delete all %s settings'), $mod_id)
+    /* type */ 
+    'settings',
+    /* action */ 
+    'delete_all',
+    /* ns */ 
+    $mod_id,
+    /* desc */ 
+    sprintf(__('delete all %s settings'), $mod_id)
 );
 
 $this->addDirectAction(
-    /* type */ 'versions',
-    /* action */ 'delete',
-    /* ns */ $mod_id,
-    /* desc */ sprintf(__('delete %s version number'), $mod_id)
+    /* type */ 
+    'versions',
+    /* action */ 
+    'delete',
+    /* ns */ 
+    $mod_id,
+    /* desc */ 
+    sprintf(__('delete %s version number'), $mod_id)
 );
 
 $this->addDirectAction(
-    /* type */ 'plugins',
-    /* action */ 'delete',
-    /* ns */ $mod_id,
-    /* desc */ sprintf(__('delete %s plugin files'), $mod_id)
-);
\ No newline at end of file
+    /* type */ 
+    'plugins',
+    /* action */ 
+    'delete',
+    /* ns */ 
+    $mod_id,
+    /* desc */ 
+    sprintf(__('delete %s plugin files'), $mod_id)
+);
diff --git a/inc/class.filter.duplicate.php b/inc/class.filter.duplicate.php
index a90a04c..1cfc789 100644
--- a/inc/class.filter.duplicate.php
+++ b/inc/class.filter.duplicate.php
@@ -1,16 +1,15 @@
 <?php
 /**
  * @brief dcFilterDuplicate, a plugin for Dotclear 2
- * 
+ *
  * @package Dotclear
  * @subpackage Plugin
- * 
+ *
  * @author Jean-Christian Denis, Pierre Van Glabeke
- * 
+ *
  * @copyright Jean-Christian Denis
  * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
  */
-
 if (!defined('DC_RC_PATH')) {
     return null;
 }
@@ -22,12 +21,12 @@ if (!defined('DC_RC_PATH')) {
  */
 class dcFilterDuplicate extends dcSpamFilter
 {
-    public $name = 'Duplicate filter';
+    public $name    = 'Duplicate filter';
     public $has_gui = true;
 
     protected function setInfo()
     {
-        $this->name = __('Duplicate');
+        $this->name        = __('Duplicate');
         $this->description = __('Same comments on others blogs of a multiblog');
     }
 
@@ -36,7 +35,7 @@ class dcFilterDuplicate extends dcSpamFilter
         if ($type != 'comment') {
             return null;
         }
-        if (strlen($content) < abs((integer) $this->core->blog->settings->dcFilterDuplicate->getGlobal('dcfilterduplicate_minlen'))) {
+        if (strlen($content) < $this->getMinLength()) {
             return null;
         }
 
@@ -44,10 +43,11 @@ class dcFilterDuplicate extends dcSpamFilter
             if ($this->isDuplicate($content, $ip)) {
                 $this->markDuplicate($content, $ip);
                 $status = 'Duplicate on other blog';
+
                 return true;
-            } else {
-                return null;
             }
+
+            return null;
         } catch (Exception $e) {
             throw new Exception($e->getMessage());
         }
@@ -55,41 +55,42 @@ class dcFilterDuplicate extends dcSpamFilter
 
     public function isDuplicate($content, $ip)
     {
-        $rs = $this->core->con->select(
-            'SELECT C.comment_id '.
-            'FROM ' . $this->core->prefix . 'comment C ' .
-            'LEFT JOIN ' . $this->core->prefix . 'post P ON C.post_id=P.post_id ' .
-            "WHERE P.blog_id != '" . $this->core->blog->id . "' " .
-            "AND C.comment_content='" . $this->core->con->escape($content) . "' " .
+        $rs = dcCore::app()->con->select(
+            'SELECT C.comment_id ' .
+            'FROM ' . dcCore::app()->prefix . dcBlog::COMMENT_TABLE_NAME . ' C ' .
+            'LEFT JOIN ' . dcCore::app()->prefix . 'post P ON C.post_id=P.post_id ' .
+            "WHERE P.blog_id != '" . dcCore::app()->blog->id . "' " .
+            "AND C.comment_content='" . dcCore::app()->con->escape($content) . "' " .
             "AND C.comment_ip='" . $ip . "' "
         );
+
         return !$rs->isEmpty();
     }
 
     public function markDuplicate($content, $ip)
     {
-        $cur = $this->core->con->openCursor($this->core->prefix . 'comment');
-        $this->core->con->writeLock($this->core->prefix . 'comment');
+        $cur = dcCore::app()->con->openCursor(dcCore::app()->prefix . dcBlog::COMMENT_TABLE_NAME);
+        dcCore::app()->con->writeLock(dcCore::app()->prefix . dcBlog::COMMENT_TABLE_NAME);
 
-        $cur->comment_status = -2;
+        $cur->comment_status      = -2;
         $cur->comment_spam_status = 'Duplicate on other blog';
         $cur->comment_spam_filter = 'dcFilterDuplicate';
         $cur->update(
-            "WHERE comment_content='" . $this->core->con->escape($content) . "' " .
+            "WHERE comment_content='" . dcCore::app()->con->escape($content) . "' " .
             "AND comment_ip='" . $ip . "' "
         );
-        $this->core->con->unlock();
+        dcCore::app()->con->unlock();
         $this->triggerOtherBlogs($content, $ip);
     }
 
-    public function gui($url)
+    public function gui(string $url): string
     {
-        if ($this->core->auth->isSuperAdmin()) {
-            $this->core->blog->settings->dcFilterDuplicate->drop('dcfilterduplicate_minlen');
+        if (dcCore::app()->auth->isSuperAdmin()) {
+            dcCore::app()->blog->settings->dcFilterDuplicate->drop('dcfilterduplicate_minlen');
             if (isset($_POST['dcfilterduplicate_minlen'])) {
-                $this->core->blog->settings->dcFilterDuplicate->put(
+                dcCore::app()->blog->settings->dcFilterDuplicate->put(
                     'dcfilterduplicate_minlen',
-                    abs((integer) $_POST['dcfilterduplicate_minlen']),
+                    abs((int) $_POST['dcfilterduplicate_minlen']),
                     'integer',
                     'Minimum lenght of comment to filter',
                     true,
@@ -99,46 +100,46 @@ class dcFilterDuplicate extends dcSpamFilter
                 http::redirect($url);
             }
 
-            return 
+            return
             '<form action="' . html::escapeURL($url) . '" method="post">' .
             '<p><label class="classic">' . __('Minimum content length before check for duplicate:') . '<br />' .
             form::field(
-                ['dcfilterduplicate_minlen'], 
-                65, 
-                255, 
+                ['dcfilterduplicate_minlen'],
+                65,
+                255,
                 $this->getMinlength(),
             ) . '</label></p>' .
             '<p><input type="submit" name="save" value="' . __('Save') . '" />' .
-            $this->core->formNonce() . '</p>' .
+            dcCore::app()->formNonce() . '</p>' .
             '</form>';
-        } else {
-            return 
-            '<p class="info">' . sprintf(
-                __('Super administrator set the minimum length of comment content to %d chars.'),
-                $this->getMinlength()
-            ) . '</p>';
         }
+
+        return
+        '<p class="info">' . sprintf(
+            __('Super administrator set the minimum length of comment content to %d chars.'),
+            $this->getMinlength()
+        ) . '</p>';
     }
 
     private function getMinLength()
     {
-        return abs((integer) $this->core->blog->settings->dcFilterDuplicate->getGlobal('dcfilterduplicate_minlen'));
+        return abs((int) dcCore::app()->blog->settings->dcFilterDuplicate->getGlobal('dcfilterduplicate_minlen'));
     }
 
     public function triggerOtherBlogs($content, $ip)
     {
-        $rs = $this->core->con->select(
+        $rs = dcCore::app()->con->select(
             'SELECT P.blog_id ' .
-            'FROM ' . $this->core->prefix . 'comment C ' .
-            'LEFT JOIN ' . $this->core->prefix . 'post P ON C.post_id=P.post_id ' .
-            "WHERE C.comment_content='" . $this->core->con->escape($content) . "' " .
+            'FROM ' . dcCore::app()->prefix . dcBlog::COMMENT_TABLE_NAME . ' C ' .
+            'LEFT JOIN ' . dcCore::app()->prefix . 'post P ON C.post_id=P.post_id ' .
+            "WHERE C.comment_content='" . dcCore::app()->con->escape($content) . "' " .
             "AND C.comment_ip='" . $ip . "' "
         );
 
         while ($rs->fetch()) {
-            $b = new dcBlog($this, $rs->blog_id);
+            $b = new dcBlog($rs->blog_id);
             $b->triggerBlog();
             unset($b);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/locales/fr/main.lang.php b/locales/fr/main.lang.php
deleted file mode 100644
index 44eb0ba..0000000
--- a/locales/fr/main.lang.php
+++ /dev/null
@@ -1,21 +0,0 @@
-<?php
-// Language: Français 
-// Module: dcFilterDuplicate - 0.8
-// Date: 2021-09-15 19:57:37 
-// Translated with dcTranslater - 2021.09.02.1 
-
-#inc/class.filter.duplicate.php:30
-$GLOBALS['__l10n']['Duplicate'] = 'Doublons';
-
-#inc/class.filter.duplicate.php:31
-$GLOBALS['__l10n']['Same comments on others blogs of a multiblog'] = 'Commentaires identiques sur les autres blogs du multiblog';
-
-#inc/class.filter.duplicate.php:104
-$GLOBALS['__l10n']['Minimum content length before check for duplicate:'] = 'Longueur minimum du contenu pour faire une vérification :';
-
-#inc/class.filter.duplicate.php:117
-$GLOBALS['__l10n']['Super administrator set the minimum length of comment content to %d chars.'] = 'Un super administrateur a régler la longueur minimum d\'un commentaire à surveiller à %d caractères.';
-
-$GLOBALS['__l10n']['Antispam for duplicate comments on multiblog'] = 'Antispam contre les doublons de commentaires sur un multiblog';
-
-$GLOBALS['__l10n']['Duplicate filter'] = 'Filtre de doublons';
\ No newline at end of file